A 188.6 mL sample of an aqueous solution at 25°C contains 80.2 mg of an unknown...
A 188.6 mL sample of an aqueous solution at 25°C contains 80.2 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 8.44 torr, what is the molar mass (in g/mol) of the unknown compound?
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A 188.6 mL sample of an aqueous solution at 25°C contains 80.2
mg of an unknown...
A 150.0 ml of sample of an aqueous solution at 25 degrees celcius contains 15.2 mg of unknown electrolyte compound. If...
A 150.0 ml of sample of an aqueous solution at 25 degrees celcius contains 15.2 mg of unknown electrolyte compound. If the solution has an osmotic pressure of 8.44 torr, what is the molar mass of the unkown compound?\
A solution of 7.50 mg of a small protein in 5.00 mL aqueous solution has an...
A solution of 7.50 mg of a small protein in 5.00 mL aqueous solution has an osmotic pressure of 6.15 torr at 23 1degree C. What is the molar mass of the protein? g/mol
The osmotic pressure of a solution containing 23.9 mg of an unknown protein in 50.0 mL...
The osmotic pressure of a solution containing 23.9 mg of an unknown protein in 50.0 mL of solution is 2.88 mmHg at 25∘C. Part A Determine the molar mass of the protein. Determine the molar mass of the protein. 259 g/mol 4.06 g/mol 154 g/mol 3.08×103 g/mol
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
A 4.75-g sample of an unknown compound is dissolved in enough water to make 100.0 mL...
A 4.75-g sample of an unknown compound is dissolved in enough water to make 100.0 mL of solution. This solution has an osmotic pressure of 25.0 torr at 25oC. Find the molar mass of the unknown.
A solution containing 28.35 mg of an unknown protein per 24.0 mL solution was found to...
A solution containing 28.35 mg of an unknown protein per 24.0 mL solution was found to have an osmotic pressure of 3.50 torr at 18 ∘C. What is the molar mass of the protein?
A solution is prepared by dissolving 3 mg of an unknown protein in 5 mL of...
A solution is prepared by dissolving 3 mg of an unknown protein in 5 mL of water. The resulting solution has an osmotic pressure of 7.23 torr at 25 °C. What is the molecular weight of the protein? 4.45 ´ 103 g mol-1 3.09 ´ 103 g mol-1 1.54 ´ 103 g mol-1 2.03 g mol-1 108 g mol-1 Please explain!
A solution of an unknown nonelectrolyte is formed by adding 1.13 g in 250 mL of...
A solution of an unknown nonelectrolyte is formed by adding 1.13 g in 250 mL of water. This generates an osmotic pressure of 0.46 atm at 25 °C. Given R = 0.0821 L-atm/K-mol, calculate the molar mass of the nonelectrolyte (to two significant figures). Please explain step-by-step.
A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have...
A solution containing 27.55 mg of an unknown protein per 25.0 mL of solution was found to have an osmotic pressure of 3.22 torr at 25.0oC. What is the molar mass ofthe protein
6. A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor. The...
6. A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor. The resulting solution melted at 176.0 C. What is the molecular mass of the compound? The melting point of pure camphor is 179.5 C. The freezing-point-depression constant for camphor Kf is 40.0 C/m. 7. A solution is prepared by dissolving 5.88 g of an unknown nonelectrolyte in enough water to make 0.355 L of solution. The osmotic pressure of the solution is 1.21 atm at...
A solution of 7.50 mg of a small protein in 5.00 mL aqueous solution has an osmotic pressure of 6.15 torr at 23 1degree C. What is the molar mass of the protein? g/mol
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